Corner-brace



J. LILL.

CORNER BRACE.

PPLICATION FILED MA Patented Oct. 4, 1921.

2-SHEETS SHEET n.

Uircoa L 11 1..

INVENTOR Q 7 "v I ATTORNEY J. LILL.

CORNER BRACE.

APPLICATION FILED MAR. 28' I921.

ATTORNEY n arse stares to greatly increase the strength of the frame and prevent distortion thereof under rough usage or strainapplied to the frame transversely of its corners. V

Another object of this invention is'to provide a corner brace, as specified, which is extremely simple in construction being formed of a single sheet of suitable sheet metal, and one which may be easily and quickly applied by any person, and does not require the services of a skilled mechanic to install it.

Y A further object of the invention is to provide a corner brace structure as specified which will not detract from the esthetic value of the article uponwhich it is used thereby particularly adapting it for use in bracing the corners of picture frames or analogous articles.

- Other objects of the invention will appear in the'following detailed description and in the accompanying drawings wherein:

' Figure 1 is a perspective View of a corner showing the improved corner brace applied.

Fig. 2 is a section through the corner brace taken on the line 22 of Fig. 1.

Fig. 3 is a cross section taken on the line 83 of Fig. 2. 7 Fig. 4 is a plan view of a blank from which the corner brace is formed.

Fig. 5 is a perspective view of the corner brace before being applied showing different positions of parts thereof in dotted lines.

Fig. 6 is a section through a modified form of the corner brace.

Fig. 7 is a transverse section through the modified form of corner brace taken on the line 77 ofFig. 6.

Fig. 8 is a detailed perspective view of a channel member adapted to be used inconnection with a braced frame when the latter is slidably supported.

7 Specification of Letters Patent.

Application filed March 28,

angles than a right angle the metal If??? a fir are JACOB LILL, OF CHICAGO, ILLINOIS.

' CORNER-BBAOE.

Patented-Get.

1921." Serial No. 456,432.

Referring more particularly to the drawing, the lmproved corner brace structure 1 is formed of a sheet of metal, preferablv rectangular in shape, however. theshane of the blank of sheet metal depends upon the number of angles to the corner or corners to be braced, forinstance, when bracing 'right angle corners the blank would be rectangular in shape,'preferably square, while in bracing corners of either greater or less blank would be shaped'accordingly. In forming the corner brace the blank 2 of sheet metalhas its corners cutaway as shown at 3 provlding substantially rectangular portions 4L at each side of the'blank, and the blank is bent upon itself diagonally, or from the corner of one of the cutout portions 3 to the corner of the cutout portion 3 directly opposite after which the sections 4: are bent at right angles to the fiat engaging or abutting portions of the blank, as shown in dotted lines in Fig. 5 of the drawing, providing portions for abutting engagement with the outer surfaces or edges of the articles or members which form the corner to be braced. In applying the corner brace; the members, such as A. and B which are placed in engagement to form'thecorner to be braced are split as at 6 across the corner between their 'sides, as clearly shown in Fig. 1 of the drawing and the folded corner brace structure 1 has the abutting portions 7 and 8 placed in the slot 6 while the angled clamp therefrom as shown in Fig. 5 of the drawing,

ing portions l engage the outer edges of'thc 'members A and B upon opposite sides of the slot 6. The edge portions?) of the angled clamping portions 4 are bent over against the outer surfaces of themembers and in abutting engagement therewith. Suitable nails, rivets, or the like 10, are then driven through the angle portions 9, members A and B and the abutting portions 7 and 8 as shown in Fig. 3 of the drawing, thus securely locking the corner brace structure l in position and reinforcing the corner to the tensile strength of the metal of which the corner brace structure is formed to make it practically impossible to distort the frame or article formed by the members A and B at the corners.

In Figs. 6 and 7 of the drawing a slight modification of the corner brace structure is shown, the said modified form being de- A and B signed for bracing a corner from the internal angle thereof in lieu of the external corner as illustrated in Figs. 1 to 5 inclusive. structure 20 is constructed of a sheet of suitable sheet metal and is doubled upon itself to provide abuttin portions 21 which en-v gage in the slot 22 in the members D and E and is also bent to provide transversely extending clamping portions 23 which engage the inner edges of the members D and E upon opposite sides of the slot 22 as clearly shown in Fig. 7 of the drawing. The edge portions 24 of the side clamping portions 23 are bent to engage the outer surfaces of the members D and E and-nails or rivets 25 may be inserted there through as indicated in dotted lines in Fig. 7 to securely anchor the corner brace 20 in place.

While the corner braces, shown in the drawing are designed for use in bracing right angled corners of a frame, however, it is to be understood that the corner. braces may be made to brace corners of greater or less angles than a right angle without departing from the spirit of this invention and that they'may be used for bracing corners of boxes, picture frames, window screens or any analogous structure where it is desired to provide rigid construction.

In window screen construction, a channel structure 30 as shown in Fig. 8 of the drawing may be provided, it being nailed or suitably attached to a window frame to slidably receive the frame formed of the brace members and in such a construction fiat springs 31, as indicated by dot and dash lines in Fig. 2 of the drawings, may be attached to the edges of the sides of the frame for frictionally engaging in the channels 30 to hold the screen structure in adjusted position:

It is, of course,.to be understood that the invention may be constructed in various other manners and the parts associated in different relations and, therefore, I do not desire to be llmited in any manner except as set forth in the claims hereunto appended.

Having thus described my invention what I claim is:

1. As a new article of manufacture, a corner brace formed of a rectangular sheet of metal bent diagonally to provide abutting portions, the edge portions of said sheet bent transversely to the abutting portions to form clamping portions. The modified form of angle brace 2. As a new article of manufacture, a corner brace formed of a rectangular sheet of metal having its corners cut away and being bent diagonally to 7 provide abutting portions, the edge portions of said sheet bent transversely to the abutting form clamping portions.

3. 'As a new article of manufacture a corner brace formed of a rectangularisheet of metal having its corners cut away to provide right angularly sided recesses at the corners of the sheet, said sheet being bent diagonally to provide substantially parallel abutting portions, the edge portions of said sheet of metal formed by the cutting out ofsaid corners adapted to be bent transversely to the abutting portions and about the article to be braced. I 7

4E. The combination witha pair of meeting members forming a corner, saidmembers slotted at the corner, of a corner brace comprising a sheet of material inserted in said I slot and having certain of its edge portions extending out of the slot and bent to engage the outer surface of the meeting members.

5. The combination with apair of meeting membersforming a corner, said members slotted at the corner, of a corner brace formed of sheet material bent to provide substantially parallel abutting portions, said abutting port onsinserted insaidslot and having their edge portions extending out of the slot, said edge. portions bent to engage the outer surfaces of the meeting mem-' bers. o V

' 6. The combination with a pair ofZmeeting members forming a .corner,said members slotted at the corner, of a corner brace formed of sheet material 'bent to provide substantiallyparallel abutting portions, said abutting portions inserted in said slot and having their edge portions extending out of the slot, said edge portions bent to engage the outer surfaces of the meeting members, and anchoring means inserted through 100 said edge portions, abutting portions, and meeting members. 7

In testimony whereof I afix mysignaturc.

V JACOB LILL.

60 portions to 

